Princess Charlotteis stealing the show once again!

Kate MiddletonandPrince Williamfaced off in acharity sailing raceon Thursday, with their two eldest children watching the action from a boat (andPrince Georgelooking adorable in a captain’s hat!) alongside their grandparents, Mike and Carole Middleton.

But when Kate brought the kids to a window above the stage where prizes were to be awarded, Charlotte showed off her cheeky side. Instead of waving to the crowd, the 4-year-old princess decided to stick out her tongue — which mom Kate quickly tried to stop her from doing.

Princess Charlotte and Kate Middleton.ADRIAN DENNIS/AFP/Getty

Princess Charlotte of Cambridge Catherine, Duchess of Cambridge

Princess Charlotte and Kate Middleton on charity sailing day 2019.ADRIAN DENNIS/AFP/Getty

Princess Charlotte of Cambridge Catherine, Duchess of Cambridge

ADRIAN DENNIS/AFP/Getty

Princess Charlotte of Cambridge Catherine, Duchess of Cambridge

Aaron Chown/PA Images via Getty

Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge during the inaugural King’s Cup

This isn’t the first time that Princess Charlotte has showed off her tongue-waging. At unclePrince Harry‘s May 2018 wedding toMeghan Markle, the royal pulled the move as her car arrived at St. George’s Chapel in Windsor Castle. (Of course, her royal uncle would probably approve — as a youngster himself, Harrymade a silly face out the car windowafter a visit to the hospital when his cousin,Princess Beatrice, was born in 1988.

Andrew Milligan - WPA/Getty Images; Daily Mirror/Mirrorpix/Getty Images

prince-harry

Kate is always ready at a moment’s notice when it comes to keeping her children on their best royal behavior. After five jam-packed days of theirroyal tour in Poland and Germanyin 2017,Princess Charlotte got a little fussybefore heading back to London on a private plane.

But mom Kate put her expert squat and chat skills to the test, immediately calming her royal toddler down and putting a smile on her face. William then helped her onto the plane.

Chris Jackson/Getty

The Duke And Duchess Of Cambridge Visit Germany - Day 3

The Duke And Duchess Of Cambridge Visit Germany - Day 3

Kate also swooped in to comfortPrincess Charlotteafter the little royaltook a spill on the Buckingham Palace balconyduring the2018 Trooping the Colourflypast.

Kate bent down to chat with a visibly-shaken Charlotte, and then picked up her daughter, quickly defusing the moment.

Charlotte went on to enjoy the rest of the flypast, excitedly clapping and following along while standing next toQueen Elizabeth’s great-granddaughterSavannah Phillips.

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Trooping the Colour 2018

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Britain Royals, London, United Kingdom - 09 Jun 2018

The King’s Cup Regatta was originally scheduled for Friday, but due to forecasted bad weather in Cowes on the Isle of Wight, the race was moved up a day.

Kate Middleton.Chris Jackson/Getty

Catherine, Duchess of Cambridge

Kate Middleton and Prince William.Trevor Adams/Matrix/MediaPunch

Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge

Prince George.Karwai Tang/WireImage

Prince George

Princess Charlotte (left).SplashNews.com

Princess Charlotte

source: people.com